Does anyone know if Nikko (=Eboya) sells their marble (?) ebonite rods to other makers? I'm wondering if there are any makers -- other than Eboya -- either in Japan or overseas, which have access to this style of pen blank: https://www.nibs.com/pens/eboya/eboya-natsume-small-kumpuu-green-cc I've never seen any non-Eboya pens made of this stuff or its color variants. As nice as the Eboya pens are, it would be cool to see some designs by other makers in this material too, which is why I'm asking. Thanks!